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support ELF_HWCAP for PPPC 

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
Nathan Froyd 2009-05-12 12:26:59 -07:00 committed by malc
parent bcd4933a23
commit df84e4f345
1 changed files with 58 additions and 0 deletions
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58
linux-user/elfload.c
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@ -300,6 +300,64 @@ static inline void init_thread(struct target_pt_regs *regs, struct image_info *i
#endif
#define ELF_ARCH EM_PPC
/* Feature masks for the Aux Vector Hardware Capabilities (AT_HWCAP).
See arch/powerpc/include/asm/cputable.h. */
enum {
PPC_FEATURE_32 = 0x80000000,
PPC_FEATURE_64 = 0x40000000,
PPC_FEATURE_601_INSTR = 0x20000000,
PPC_FEATURE_HAS_ALTIVEC = 0x10000000,
PPC_FEATURE_HAS_FPU = 0x08000000,
PPC_FEATURE_HAS_MMU = 0x04000000,
PPC_FEATURE_HAS_4xxMAC = 0x02000000,
PPC_FEATURE_UNIFIED_CACHE = 0x01000000,
PPC_FEATURE_HAS_SPE = 0x00800000,
PPC_FEATURE_HAS_EFP_SINGLE = 0x00400000,
PPC_FEATURE_HAS_EFP_DOUBLE = 0x00200000,
PPC_FEATURE_NO_TB = 0x00100000,
PPC_FEATURE_POWER4 = 0x00080000,
PPC_FEATURE_POWER5 = 0x00040000,
PPC_FEATURE_POWER5_PLUS = 0x00020000,
PPC_FEATURE_CELL = 0x00010000,
PPC_FEATURE_BOOKE = 0x00008000,
PPC_FEATURE_SMT = 0x00004000,
PPC_FEATURE_ICACHE_SNOOP = 0x00002000,
PPC_FEATURE_ARCH_2_05 = 0x00001000,
PPC_FEATURE_PA6T = 0x00000800,
PPC_FEATURE_HAS_DFP = 0x00000400,
PPC_FEATURE_POWER6_EXT = 0x00000200,
PPC_FEATURE_ARCH_2_06 = 0x00000100,
PPC_FEATURE_HAS_VSX = 0x00000080,
PPC_FEATURE_PSERIES_PERFMON_COMPAT = 0x00000040,
PPC_FEATURE_TRUE_LE = 0x00000002,
PPC_FEATURE_PPC_LE = 0x00000001,
};
#define ELF_HWCAP get_elf_hwcap()
static uint32_t get_elf_hwcap(void)
{
CPUState *e = thread_env;
uint32_t features = 0;
/* We don't have to be terribly complete here; the high points are
Altivec/FP/SPE support. Anything else is just a bonus. */
#define GET_FEATURE(flag, feature) \
do {if (e->insns_flags & flag) features |= feature; } while(0)
GET_FEATURE(PPC_64B, PPC_FEATURE_64);
GET_FEATURE(PPC_FLOAT, PPC_FEATURE_HAS_FPU);
GET_FEATURE(PPC_ALTIVEC, PPC_FEATURE_HAS_ALTIVEC);
GET_FEATURE(PPC_SPE, PPC_FEATURE_HAS_SPE);
GET_FEATURE(PPC_SPE_SINGLE, PPC_FEATURE_HAS_EFP_SINGLE);
GET_FEATURE(PPC_SPE_DOUBLE, PPC_FEATURE_HAS_EFP_DOUBLE);
GET_FEATURE(PPC_BOOKE, PPC_FEATURE_BOOKE);
GET_FEATURE(PPC_405_MAC, PPC_FEATURE_HAS_4xxMAC);
#undef GET_FEATURE
return features;
}
/*
* We need to put in some extra aux table entries to tell glibc what
* the cache block size is, so it can use the dcbz instruction safely.